Patents by Inventor Dennis E. White

Dennis E. White has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Portable bookholder
    Patent number: 4925144
    Abstract: A bookholder is described, relying on a single unitary or articulated main member to support a book in contact with one end thereof, with the aid of crossbars and/or clamps mating therewith.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: May 15, 1990
    Inventor: Dennis E. White